NGC 3073

NGC 3073 is a dwarf lenticular galaxy in the constellation Ursa Major.^[5][6][7] It is at a distance of about 65 million light-years (20 megaparsecs) from Earth.^[3] NGC 3073 was discovered by German-British astronomer William Herschel on 1 April 1790. ^[8]

ConstellationUrsa Major

Right ascension10^h 00^m 52.042^s[1]

Declination+55° 37′ 08.17″^[1]

Redshift0.003933^[2]

Quick facts Observation data (J2000 epoch), Constellation ...

NGC 3073
NGC 3073 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Ursa Major
Right ascension	10h 00m 52.042s[1]
Declination	+55° 37′ 08.17″[1]
Redshift	0.003933[2]
Heliocentric radial velocity	1177 km/s[2]
Distance	65 Mly (20 Mpc)[3]
Group or cluster	NGC 3079 Group
Apparent magnitude (V)	13.40[3]
Apparent magnitude (B)	14.07[3]
Characteristics
Type	SAB0−[3]
Size	~40,300 ly (12.36 kpc) (estimated)[4]
Apparent size (V)	1.2′ × 1.1′[4]
Other designations
HOLM 156B, UGC 5374, MCG +09-17-007, Mrk 131, PGC 28974, CGCG 265-054[2][4]

Close

NGC 3073 belongs to the NGC 3079 Group (also known as LGG 188), which contains six galaxies.^[9] The other galaxies in the group are NGC 3079, UGC 5421, UGC 5479, UGC 5459, and UGC 5460.^[10] The galaxies NGC 3073 and NGC 3079 are also listed together as Holm 156 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.^[11]

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